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An analysis of the numerical solution of Fredholm integral equations of the first kind

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This paper analyzes the numerical solution of Fredholm integral equations of the first kindTx=y by means of finite rank and other approximation methods replacingTx=y byT N x=y N ,N=1,2, .... The operatorsT andT N can be viewed as operators from eitherL 2[a, b] toL 2[c,d] or as operators fromL [a, b] toL [c, d]. A complete analysis of the fully discretized problem as compared with the continuous problemTx=y is also given. The filtered least squares minimum norm solutions (LSMN) to the discrete problem and toT N x=y are compared with the LSMN solution ofTx=y. Rates of convergence are included in all cases and are in terms of the mesh spacing of the quadrature for the fully discretized problem.

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Lee, J.W., Prenter, P.M. An analysis of the numerical solution of Fredholm integral equations of the first kind. Numer. Math. 30, 1–23 (1978). https://doi.org/10.1007/BF01403903

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